"This sentencing shows the world that no matter how protected or powerful you are, DEA will ensure that you face justice," said the acting administrator of the U.S. Drug Enforcement Administration, Uttam Dhillon, at Guzman's sentencing.

Having studied the politics and economics of the U.S.-Mexico drug trade, I see a different lesson in Guzman's life story. The U.S. may have locked up Mexico's worst "bad hombre," but the business he ran is far too big to fail.

Mexican estimates suggest that each month the Sinaloa cartel trades two tons of cocaine and 10,000 tons of marijuana plus heroine, methamphetamine and other drugs. Founded in Sinaloa state in the late 1980s, the cartel now distributes drugs in 50 countries, including Argentina, the Philippines and Russia.

But Mexican cartels were born to serve consumers in the United States, the world's biggest consumer of illicit drugs.

It's Americans' "insatiable demand for illegal drugs," as then-Secretary of State Hillary Clinton said in 2009, that allowed Guzman's Sinaloa cartel to become the world's biggest supplier of illicit drugs.

Drug trafficking has a highly lucrative business model. According to data from 2016, the wholesale price for a gram of cocaine is approximately US$2.30 in Colombia and $12.50 in Mexico. The same gram will cost $28 in the U.S. By the time it gets to Australia, it could fetch as much as $176.50.

Retail prices per gram are even higher: $82 in the U.S. and $400 in Australia.

Drug prices rise significantly during transit as intermediaries demand compensation for the risk they assume in getting the product to consumers. This liability markup is one reason that keeping drugs illegal has made them so expensive on the streets and so profitable for the people who trade in them.

Killing, threats and bribes

Illegality is also the reason that the drug trade is so violent.

Running an illegal operation, kingpins like Guzman must enforce their own agreements and protect themselves from authorities and competitors. They do so using a combination of killing, threats and bribes.

At least eight armed groups once worked under Guzman's command in Mexico, attacking competing cartels and members deemed traitors.

Guzman also bribed as many officers as necessary to succeed in his business.

Alex Cifuentes, a close associate of Guzman, testified in the trial that the cartel chief once paid a $100 million bribe to then-Mexican President Enrique Pena Nieto – an accusation Pena Nieto's administration dismissed as "false, defamatory and absurd."

For five decades since President Richard Nixon launched the war on drugs, the United States has chose not to focus on the economic forces driving this clandestine industry in favor of punishment, sending millions of drug traffickers, corner dealers and drug users to jail.

Even as states try to ease mass incarceration by legalizing cannabis and decriminalizing minor drug offenses like possession, President Trump has called for escalating the federal government's drug war.

In 2018, Trump delivered an incendiary speech at the United Nations decrying the "scourge" of drugs, followed with a pledge signed by 129 nations to "cut off the supply of illicit drugs by stopping their production…and flow across borders."

A physical barrier is unlikely to thwart drug smugglers, particularly the wily Sinaloa cartel, history shows.

When confronted with a high-tech border fence in Arizona, constructed long before Trump's administration, Mexican smugglers use a catapult to fling hundred-pound bales of marijuana over to the American side.

"We've got the best fence money can buy," former DEA chief Michael Brown told The New York Times journalist Patrick Radden Keefe in 2017, "and they counter us with a 2,500-year-old technology."

Then there's the other ancient technology perfected by Guzman: the tunnel. In the past quarter-century, officials have discovered about 180 cleverly disguised illicit passages under the U.S.-Mexico border. Many, like the one Guzman used to escape prison, are equipped with electricity, ventilation and elevators.

Corruption undermines the law outside Mexico, too. Between 2006 and 2016 some 200 employees and contractors of the Department of Homeland Security – the agency charged with defending the U.S. border – have accepted nearly $15 million in bribes, according to The New York Times.

"Almost no evidence about corrupt American officials" was allowed at El Chapo's trial, the Times reports.

After El Chapo

El Chapo's downfall hasn't reduced the availability, price, use or lethality of currently illegal drugs.

Guzman's capture hasn't even hurt the Sinaloa cartel, which has a new boss who promotes a more horizontal leadership structure and is expanding its operations into other criminal activities like illegal mining and human trafficking.

Drug trafficking, of course, is not just a Mexican business. In June, U.S. authorities in Philadelphia seized a cargo vessel carrying nearly 20 tons of cocaine.

The drug-running ship didn't belong to the Sinaloa cartel. It was owned by a fund run by banking giant JPMorgan Chase.

This story is an updated version of an article originally published on Feb. 17, 2017.

Luis Gomez Romero is Senior Lecturer in Human Rights, Constitutional Law and Legal Theory, University of Wollongong.